Livewell

Contaminant

Arsenic

A naturally occurring and industrial toxic metalloid.

What it is

Arsenic enters waterways from natural mineral deposits, mining, pesticides, and industrial waste. The inorganic form is the most toxic; long-term exposure is linked to several cancers (skin, bladder, lung) and to skin and cardiovascular effects. It concentrates in bottom-feeding and long-lived fish.

Cleaning and cooking will not help

Trimming, skinning, and cooking won't lower it — it's stored in the muscle. Reduce exposure by eating smaller, younger fish and fewer meals.

How to prepare it

  • Trimming and skinning won't help — this settles in the muscle you eat, not the fat.
  • Cooking doesn't remove it either; a fillet carries the same amount cooked or raw.
  • Eat smaller, younger fish — they carry less.
  • Follow the meal limits above and space your meals out across the month.

Waters with Arsenic advisories

27 waters across 8 states.